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#1 |
Registered User
Join Date: Aug 2002
Location: Meridian, Idaho
Posts: 164
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12 Bolt Rear End Question
I've got a GM 12-bolt rear end (not posi) and I just pulled the axles out and replaced the axle/wheel bearings. When I was putting it together I noticed that there was approximately 1/16" of play on the axle if you try to slide it in and out. I noticed the "C" clips that hold the axle in place are actually cupped and would only go in if they were turned one way.
My question is: are they supposed to be cupped or should they be flat? Does this sound like a normal amount of play in each rear axle?
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1972 C-10 LWB, 400/350, 2WD 1972 C-20 Custom Camper, 350/350, 4WD (Converted) |
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#2 |
Senior Member
Join Date: Nov 2001
Location: Pasadena, Texas, USA
Posts: 1,005
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The c clips shouldn't be cuped, as far as 1/16" of play, are you talking about with the pin in or the pin out? I pulled my axles out last week, and once I removed the pin in the center ( the one hold the spider gears ) the axle would move hell I would say a 1/4" or so. But once the pin is in, they were pretty tight. I am not sure what caused your clips to get cuped though, unless the pin has a lot of wear where the axle is hitting it.
Sam
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72 LWB chevy truck. Pasadena, Texas |
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#3 |
Registered User
Join Date: Aug 2002
Location: Meridian, Idaho
Posts: 164
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The estimated 1/16" of play was with the center pin installed. It was enough that I could get a good "ding" sound out of the axle hitting the pin if I pulled the axle all the way out and then pushed it in with a modest force.
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1972 C-10 LWB, 400/350, 2WD 1972 C-20 Custom Camper, 350/350, 4WD (Converted) |
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#4 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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The c clips should be flat. Do they look "blue", like they have been hot? If in doubt, your best bet is to change them. As far as the 1/16 " in/out on the axles....thats normal on a C clip rear diff. Good luck,crazyL
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#5 |
Registered User
Join Date: Aug 2002
Location: Meridian, Idaho
Posts: 164
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The "C" clips did not appear to be blue like they had gotten hot. I'm thinking that I will probably go ahead and replace them just to make sure.
Are they an item that most parts stores would have available?
__________________
1972 C-10 LWB, 400/350, 2WD 1972 C-20 Custom Camper, 350/350, 4WD (Converted) |
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#6 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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You could check around,but I think the clips will be a dealer item, or possibly a driveline shop can get them.....
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